17 Best Coffee Shops in Sarnia

“Brownstones Community Spotlight: Global Donuts If you’re from Sarnia, you already know Global Donuts isn’t just a donut shop, it’s a local institution. Nestled on London Line, this place has earned its cult-classic status for good reason. From the first bite of one of their legendary Pączkis, to the unmistakable freshness of donuts made right on site, you’re tasting a level of craft that’s becoming rare. At the heart of it all is Gus, the kind of owner every community wishes they had. He’s a quiet force of consistency, generosity, and pride proving that when passion meets purpose, the results are unforgettable. We’ve also heard from countless locals about how well he treats his staff, and my own daughter is part of his team, and she’s proud to be there. That speaks volumes. Here’s to Global Donuts: a place that feels like home, delivers like a dream, and reminds us that real community is built one great donut at a time.“

“Brownstones Spotlight: Blackwater Coffee Tucked into the heart of downtown Sarnia is a place that doesn't just serve coffee it defines it. Blackwater Coffee isn’t simply a café; it’s a benchmark of style, quality, and entrepreneurial spirit. Long before downtown’s resurgence, Dave the visionary behind Blackwater committed to something greater than just brewing beans. He built an atmosphere. A vibe. A standard. With a relentless work ethic and an eye for design, Dave created a space that feels as good as the coffee tastes. Every cup at Blackwater tells a story of craftsmanship, consistency, and community. And if you've ever been, you know the truth: once you've had Blackwater, you find yourself craving that next cup before you've even left the block. At Brownstones, we know what it takes to build something meaningful in this city. That’s why we’re proud to spotlight Blackwater Coffee a true local gem and a cornerstone of what makes Sarnia special. Here's to Dave, to his incredible team, and to many more years of caffeinated excellence.“

“I just had the most delicious bagel sandwich from the Bagel Factory. I drive by all the time and finally went in. The gal who served me was super friendly and helpful. I will now be a once a week customer. Amazing.“

“This is probably one of the best kept secrets in our community. In this quiet location, is a place called Mine Fresh. Although it is small by fast food standards, it is a Gem! You see, it is both a convenience store, as well as a small but very tasty eat in or take out facility. Just ask Jay, the owner of Mine Fresh, and she will prepare your order fresh made while you wait.

Vegetarian options: Jay serves mostly items that contain beef chicken and more. But do not hesitate to ask her for many options she has available, vegans can enjoy her many friendly options for sure!

Dietary restrictions: Again please ask Jay for her suggestions regarding dietary restrictions. She will accomodate your requests with a number of healthy options for sure!“

“Excellent food. The menu covers everything from breakfast to dinner and dessert. A cozy restaurant with lots of seating and super friendly staff. Highly recommend!“

“Great casual place to drop in for your fav beverage and a bite.“

“constantly the best coffee in town, great staff and always quick. been going here for years. thanks for the morning coffee!“

“The customer service here is incredible. The employees are very friendly and I feel welcomed here which can be hard for me. It has been really uplifting in what has been a very difficult time in my life. It is nice getting a little treat every now and then. The flavoured drinks are very good. I find the black coffee a little on the bitter side, but sometimes that is what I crave. The espresso seems to be particularly potent here, which I have learned is not a substitute for a proper sleep! The food is pretty great too, I struggle to eat breakfast sometimes but am fond of the selections here.“

“All is good but plz check your high chair for kids at least twice a day
I know this weather is of insects not management’s fault
But plz check it because when I came their was something on that so I have to carry my baby in my lap
Thnkeww“

“I’m in grade for Miss Martin is the best teacher love the school thanks to all the teachers that taught me and the vice principal and the principal are the bestThank you“

“Tim Hortons provides a welcoming and friendly atmosphere that makes it a great spot to relax and unwind.

Although the quality of the coffee isn't top-notch, the variety of donuts and pastries is always a treat.

The staff are generally pleasant and efficient, ensuring a positive experience overall. Despite the coffee not being the best, the inviting environment and tasty snacks make it worth visiting.“

“I purchased a Tim's gift card at Giant Tiger for a friend the card said activated but would not work at several Tim Hortons. Giant Tiger did nothing and I spent several hours talking to Tim Hortons customer service which did nothing.
I went to this location and the manager/owner Shawn was wonderful he took the card that did not work and gave me another with a bit extra for the inconvenience.
I go there quite a bit and will continue to do so as he treats customers with respect, honesty and integrity. ❤️“

“amazing staff, Ambience and great food options. I love to go at this place.“

“Stopped by the drive-thru late last night and was pleasantly surprised by how smooth everything went. The night crew was quick, polite, and got the order right even at that hour. I think Jass was on headset-super calm and professional with the pleasant smile. Always nice to get good service, even during the late shift. Appreciate the team working those hours!“

“I recently visited a Starbucks- London road location in Sarnia- and I just want to rave about my experience! this woman named *JC* sorry if I spelled it wrong, but she was such a treasure! she helped me pick out the best birthday drink, and was such a delight to converse with. she literally went above and beyond to help my sister and I. 10000 gold stars for her.“

“cheaper than Starf*cks !“

“love this location the staff always thrive to provide 100% customer service. the employees are always sooo friendly and polite keep up with the great energy :)“